<template>
  <div class="app-container">
    <el-card shadow="always" class="top-card">
      <el-form :inline="true">
        <el-form-item label="菜单名称">
          <el-input v-model="queryParams.menuName" placeholder="请输入菜单名称" clearable size="small" @keyup.enter.native="handleQuery" />
        </el-form-item>
        <el-form-item label="状态">
          <el-select v-model="queryParams.visible" placeholder="菜单状态" clearable size="small">
            <el-option v-for="dict in visibleOptions" :key="dict.dictValue" :label="dict.dictLabel" :value="dict.dictValue" />
          </el-select>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
          <el-button type="primary" icon="el-icon-plus" size="mini" @click="handleAdd" v-hasPermi="['system:menu:add']">新增</el-button>
        </el-form-item>
      </el-form>
    </el-card>

    <el-card shadow="always" class="bottom-card">
      <el-table v-loading="loading" :data="menuList" row-key="menuId" :tree-props="{children: 'children', hasChildren: 'hasChildren'}">
        <el-table-column prop="menuName" label="菜单名称" :show-overflow-tooltip="true" width="160"></el-table-column>
        <el-table-column prop="icon" label="图标" align="center" width="100">
          <template slot-scope="scope">
            <svg-icon :icon-class="scope.row.icon" />
          </template>
        </el-table-column>
        <el-table-column prop="orderNum" label="排序" width="60"></el-table-column>
        <el-table-column prop="perms" label="权限标识" :show-overflow-tooltip="true"></el-table-column>
        <el-table-column prop="component" label="组件路径" :show-overflow-tooltip="true"></el-table-column>
        <el-table-column prop="visible" label="可见" :formatter="visibleFormat" width="80"></el-table-column>
        <el-table-column label="创建时间" align="center" prop="createTime">
          <template slot-scope="scope">
            <span>{{ parseTime(scope.row.createTime) }}</span>
          </template>
        </el-table-column>
        <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
          <template slot-scope="scope">
            <el-button size="mini" type="text" icon="el-icon-edit" @click="handleUpdate(scope.row)" v-hasPermi="['system:menu:edit']">修改</el-button>
            <el-button size="mini" type="text" icon="el-icon-plus" @click="handleAdd(scope.row)" v-hasPermi="['system:menu:add']">新增</el-button>
            <el-button size="mini" type="text" icon="el-icon-delete" @click="handleDelete(scope.row)" v-hasPermi="['system:menu:remove']">删除</el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 添加或修改菜单对话框 -->
      <el-dialog :title="title" :visible.sync="open" width="600px">
        <el-form ref="form" :model="form" :rules="rules" label-width="80px">
          <el-row>
            <el-col :span="24">
              <el-form-item label="上级菜单">
                <treeselect v-model="form.parentId" :options="menuOptions" :normalizer="normalizer" :show-count="true"
                  placeholder="选择上级菜单" />
              </el-form-item>
            </el-col>
            <el-col :span="24">
              <el-form-item label="菜单类型" prop="menuType">
                <el-radio-group v-model="form.menuType">
                  <el-radio label="M">目录</el-radio>
                  <el-radio label="C">菜单</el-radio>
                  <el-radio label="F">按钮</el-radio>
                </el-radio-group>
              </el-form-item>
            </el-col>
            <el-col :span="24">
              <el-form-item v-if="form.menuType != 'F'" label="菜单图标">
                <el-popover placement="bottom-start" width="460" trigger="click" @show="$refs['iconSelect'].reset()">
                  <IconSelect ref="iconSelect" @selected="selected" />
                  <el-input slot="reference" v-model="form.icon" placeholder="点击选择图标" readonly>
                    <svg-icon v-if="form.icon" slot="prefix" :icon-class="form.icon" class="el-input__icon" style="height: 32px;width: 16px;" />
                    <i v-else slot="prefix" class="el-icon-search el-input__icon" />
                  </el-input>
                </el-popover>
              </el-form-item>
            </el-col>
            <el-col :span="12">
              <el-form-item label="菜单名称" prop="menuName">
                <el-input v-model="form.menuName" placeholder="请输入菜单名称" />
              </el-form-item>
            </el-col>
            <el-col :span="12">
              <el-form-item label="显示排序" prop="orderNum">
                <el-input-number v-model="form.orderNum" controls-position="right" :min="0" />
              </el-form-item>
            </el-col>
            <el-col :span="12">
              <el-form-item v-if="form.menuType != 'F'" label="是否外链">
                <el-radio-group v-model="form.isFrame">
                  <el-radio label="0">是</el-radio>
                  <el-radio label="1">否</el-radio>
                </el-radio-group>
              </el-form-item>
            </el-col>
            <el-col :span="12">
              <el-form-item v-if="form.menuType != 'F'" label="路由地址" prop="path">
                <el-input v-model="form.path" placeholder="请输入路由地址" />
              </el-form-item>
            </el-col>
            <el-col :span="12" v-if="form.menuType == 'C'">
              <el-form-item label="组件路径" prop="component">
                <el-input v-model="form.component" placeholder="请输入组件路径" />
              </el-form-item>
            </el-col>
            <el-col :span="12">
              <el-form-item v-if="form.menuType != 'M'" label="权限标识">
                <el-input v-model="form.perms" placeholder="请权限标识" maxlength="50" />
              </el-form-item>
            </el-col>
            <el-col :span="24">
              <el-form-item v-if="form.menuType != 'F'" label="菜单状态">
                <el-radio-group v-model="form.visible">
                  <el-radio v-for="dict in visibleOptions" :key="dict.dictValue" :label="dict.dictValue">{{dict.dictLabel}}</el-radio>
                </el-radio-group>
              </el-form-item>
            </el-col>
          </el-row>
        </el-form>
        <div slot="footer" class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
  import {
    listMenu,
    getMenu,
    delMenu,
    addMenu,
    updateMenu
  } from "@/api/system/menu";
  import Treeselect from "@riophae/vue-treeselect";
  import "@riophae/vue-treeselect/dist/vue-treeselect.css";
  import IconSelect from "@/components/IconSelect";

  export default {
    name: "Menu",
    components: {
      Treeselect,
      IconSelect
    },
    data() {
      return {
        // 遮罩层
        loading: true,
        // 菜单表格树数据
        menuList: [],
        // 菜单树选项
        menuOptions: [],
        // 弹出层标题
        title: "",
        // 是否显示弹出层
        open: false,
        // 菜单状态数据字典
        visibleOptions: [],
        // 查询参数
        queryParams: {
          menuName: undefined,
          visible: undefined
        },
        // 表单参数
        form: {},
        // 表单校验
        rules: {
          menuName: [{
            required: true,
            message: "菜单名称不能为空",
            trigger: "blur"
          }],
          orderNum: [{
            required: true,
            message: "菜单顺序不能为空",
            trigger: "blur"
          }]
        }
      };
    },
    created() {
      this.getList();
      this.getDicts("sys_show_hide").then(response => {
        this.visibleOptions = response.data;
      });
    },
    methods: {
      // 选择图标
      selected(name) {
        this.form.icon = name;
      },
      /** 查询菜单列表 */
      getList() {
        this.loading = true;
        listMenu(this.queryParams).then(response => {
          this.menuList = this.handleTree(response.data, "menuId");
          this.loading = false;
        });
      },
      /** 转换菜单数据结构 */
      normalizer(node) {
        if (node.children && !node.children.length) {
          delete node.children;
        }
        return {
          id: node.menuId,
          label: node.menuName,
          children: node.children
        };
      },
      /** 查询菜单下拉树结构 */
      getTreeselect() {
        listMenu().then(response => {
          this.menuOptions = [];
          const menu = {
            menuId: 0,
            menuName: '主类目',
            children: []
          };
          menu.children = this.handleTree(response.data, "menuId");
          this.menuOptions.push(menu);
        });
      },
      // 菜单显示状态字典翻译
      visibleFormat(row, column) {
        if (row.menuType == "F") {
          return "";
        }
        return this.selectDictLabel(this.visibleOptions, row.visible);
      },
      // 取消按钮
      cancel() {
        this.open = false;
        this.reset();
      },
      // 表单重置
      reset() {
        this.form = {
          menuId: undefined,
          parentId: 0,
          menuName: undefined,
          icon: undefined,
          menuType: "M",
          orderNum: undefined,
          isFrame: "1",
          visible: "0"
        };
        this.resetForm("form");
      },
      /** 搜索按钮操作 */
      handleQuery() {
        this.getList();
      },
      /** 新增按钮操作 */
      handleAdd(row) {
        this.reset();
        this.getTreeselect();
        if (row != null) {
          this.form.parentId = row.menuId;
        }
        this.open = true;
        this.title = "添加菜单";
      },
      /** 修改按钮操作 */
      handleUpdate(row) {
        this.reset();
        this.getTreeselect();
        getMenu(row.menuId).then(response => {
          this.form = response.data;
          this.open = true;
          this.title = "修改菜单";
        });
      },
      /** 提交按钮 */
      submitForm: function() {
        this.$refs["form"].validate(valid => {
          if (valid) {
            if (this.form.menuId != undefined) {
              updateMenu(this.form).then(response => {
                if (response.code === 200) {
                  this.msgSuccess("修改成功");
                  this.open = false;
                  this.getList();
                } else {
                  this.msgError(response.msg);
                }
              });
            } else {
              addMenu(this.form).then(response => {
                if (response.code === 200) {
                  this.msgSuccess("新增成功");
                  this.open = false;
                  this.getList();
                } else {
                  this.msgError(response.msg);
                }
              });
            }
          }
        });
      },
      /** 删除按钮操作 */
      handleDelete(row) {
        this.$confirm('是否确认删除名称为"' + row.menuName + '"的数据项?', "警告", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning"
        }).then(function() {
          return delMenu(row.menuId);
        }).then(() => {
          this.getList();
          this.msgSuccess("删除成功");
        }).catch(function() {});
      }
    }
  };
</script>

<style>
  .top-card .el-card__body {
    padding-bottom: 0;
  }

  .bottom-card {
    margin-top: 10px;
  }
</style>
